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Your search has returned 3 articles:
  • Feature

    Breaking it Down

    Suppose there was a fourth little pig. This one was a physicist. Unlike his brother the engineer, who built a house out of tried-and-true bricks, the physicist pig chose a building material by doing calculations based on fundamental principles. He settled on a substance made from silicon and oxygen, an abundant material with high bond strength and the aesthetic bonus of transparency. It was...

    01/29/2010 - 14:02
  • Feature

    Infrasonic Symphony

    "Let me start off with a riddle," says NASA scientist Allan J. Zuckerwar. In his office in Hampton, Va., he rattles off items as dissimilar as rhinoceroses, supersonic aircraft, and hurricanes. "Now, what do they have in common?" The answer, Zuckerwar explains, is that each one generates silent infrasound—long sound waves at a frequency below 20 hertz. People can't hear anything below that...

    01/03/2004 - 14:55 Earth
  • Feature

    Electronic Jetsam

    Twice each day at more than 1,100 sites around the world, scientists simultaneously loft weather balloons to collect data about Earth's atmosphere. During each balloon's ascent, which lasts a couple of hours or so, instruments garner information about air temperature, humidity, barometric pressure, wind speed, and wind direction. Meteorologists feed all of these data into their computer...

    01/27/2003 - 13:58 Earth